Optical block for an endoscope



FIG. 1 is a left side perspective view of an optical block for an endoscope in accordance with the new design;

FIG. 2 is a left side isometric view thereof;

FIG. 3 is a top isometric view thereof;

FIG. 4 is a right side isometric view thereof;

FIG. 5 is a bottom isometric view thereof;

FIG. 6 is a front isometric view thereof; and,

FIG. 7 is a rear isometric view thereof.

The broken lines shown in FIGS. 1-7 represent the bounds of the claimed design and form no part of the claimed design. 

The ornamental design for an optical block for an endoscope, as shown and described. 